baber/WOPTO huggingface dataset:
Patent GB-691747-A (GB)
Title: Improvements in or relating to weft replenishing mechanism of automatic weaving looms
Inventor: GARSTANG THOMAS STOPFORD
IPC: D03D45/20
Filed: 1950-07-26
Abstract: 691,747. Looms. AUTOMATIC LOOMS & ACCESSORIES, Ltd. July 25, 1951 [July 26, 1950], No. 18633/50. Class 142(iii) A weft-replenishing mechanism for a loom comprises a gravity feed magazine having an arched member A fixed to the bobbin ejecting hammer A', and a spring- urged plate C retaining the bobbins in the magazine until actuated by the hammer. If a bobbin is incorrectly positioned, the butt is struck by the hammer in the normal manner, but the nose of the bobbin, not being in a position to be struck by the arched member can rise freely against a pivoted latch F. When the hammer has returned to its normal position an aperture B in the plate C permits the bobbin to fall clear.
Patent GB-146828-A (GB)
Title: Improvements in and relating to brush holders for electrical devices
IPC: H01R39/38
Filed: 1920-07-05
Abstract: 146,828. Entz Motor Patents Corporation, (Assignees of Stanley, R. W.). Oct. 18, 1915, [Convention date]. Void [Published under Sect. 91 of the Act]. Brushes; brush-holders; collecting-rings. - A brush-holder for dynamo-electric machines comprises a brush-supporting arm 13, Fig. 1, pivotally supported intermediate its ends to one end of a lever 11 which is pivoted at its other end to a stationary bracket, and a spring 15 fixed at one end and connected at the other end to an intermediate part of the lever 11. Two brush-holders are mounted in parallel and the spring 15 is connected to a rod 17 loosely bearing in the two levers 11 so as to permit of relative angular movement between the levers. In a modification, the arm 13 and lever 11 are connected together by a ball-and-socket joint 12<x>, Fig. 6, so as to permit of angular movement of the arm 13 in all directions, the movement in two direcions being limited by the sides 14<x> of the slot formed in the arm 13. The contact surfaces of the brushes and collecting-rings are given the shape shown in Fig. 5 so as to prevent the brushes coming in contact with the insulating side parts 18<x> of the collecting rings.
Patent GB-1503677-A (GB)
Title: Change-speed gear device for a pedal-driven vehicle
IPC: F16H3/72
Filed: 1975-05-05
Abstract: 1503677 Variable-speed gear G RIPLEY 5 May 1975 [7 May 1974] 18693/75 Heading F2D A steplessly variable gear for a pedal-driven two, three or four wheeled vehicle, for mounting on the rear wheel or pedal bracket, comprises an input planet carrier 34 formed with chainsprocket teeth 24, output sun 38 secured to the rear wheel, and reaction ring 40 which latter can be held for a fixed overdrive ratio, or be permitted to rotate forwards for reduced output speeds at a speed determined by a controllable friction contracting band or expanding shoe brake (Figs. 7-9, not shown), or by a throttled positive displacement hydraulic pump 102 driven by the ring gear. The closed hydraulic circuit 100, Fig. 10, includes a reservoir 122, one-way valve 134 preventing reverse rotation, and, in parallel, a piston valve 106 directly controllable by a lever 110 and an automatic pressure regulating valve 116, the load spring of which is adjustably compressed by a second control lever 120. Reverse rotation of the ring gear may be prevented by a pawl (130, Fig. 14 not shown) directly engaging its internal teeth. In this form a back pedal brake may be used. A flap (41, Fig. 4, not shown) bearing laterally on a serrated side of the ring gear may give an audible indication of the rate of slip of the ring gear.
Patent GB-613632-A (GB)
Title: Improvements in variable eccentric mechanism
IPC: F04B43/02
Filed: 1946-06-21
Abstract: 613,632. Eccentrics. E.C.D., Ltd., and VINALL, C. J. C. June 21, 1946, No. 18718. [Class 122 (i)] A variable eccentric mechanism comprises an eccentric block 40 caused to slide radially by means of a control member 44 which fits in an oblique hole 43 in the block 40. The member 44 is carried by an axially slidable adjusting rod 46 extending into the bores of two hollow shafts 36 and 37, the former carrying a driving pulley. The block 40, which is mounted between flanges 38 and 39 on the shafts 36 and 37, is provided with flats engaging grooves 42 in the flanges 38 and 39. The rod 46 is actuated by a knob or hand wheel 48 fixed to a thimble 49 screwed to a tail 51 of a member 52 which is slidably mounted in a housing 50. A double-thrust ball-bearing 53, enclosed by the member 52, engages both faces of a collar 54 fixed to the rod 46 by an adaptor 55. An eccentric peg 62, upon a bolt 63, engages a groove 61 in the member 52, thereby preventing the latter from rotating when the thimble 49 is turned by the knob 48. The throw of the eccentric, which is varied by the axial movement of the rod 46, is indicated by a notch 56 on a plunger 57 carried by a screw 58 in the member 52, the plunger 57 travelling along a bore 59 in the housing 50. A ring nut 65 and an abutment 68 on the block 40 serve to retain a roller bearing 67, mounted in an eccentric strap 30, upon the block 40.
Patent GB-784904-A (GB)
Title: Improvements in or relating to earth-leakage indicating devices
IPC: G01R27/18
Filed: 1954-06-25
Abstract: 784,904. 'Resistance measurement. ETABLISSEMENTS MERLIN & GERIN, SOC. ANON. June 25, 1954 [June 25, 19531, No. 18718/54. Addition to 702,097, [Group XXXVII]. Class 37. [Also in Group XXXVII] In an arrangement for measuring the insulation resistance of a polyphase line according to the parent Specification, the D.C. source is a condenser C1 charged over rectifiers Xa ... Xc by the three voltages obtained from three sliding contact resistances Ra... Rc which are starconnected to form an artificial neutral point. The device 2 is arranged for connection to the line 1 via fuses 4a ... 4c by a push-button switch 5. An ohmmeter 0 indicates the resistance value. Resistances Ra... Rc are shunted by neon lamps La ... Lc, one of which fails to light if an open-circuit (probably caused by a fuse blowing) occurs. The switch 5 may be omitted and the device 2 permanently connected to the line 1.
Patent GB-1448892-A (GB)
Title: Vehicle window wipers
IPC: B60S1/04
Filed: 1974-04-29
Abstract: 1448892 Window wipers CHRYSLER UNITED KINGDOM Ltd 7 March 1975 [24 April 1974] 18765/74 Heading A4F [Also in Division F2] A vehicle window wiper, particularly applicable to opening rear windows, has a wiper-blade assembly 28 at one end of a drive-shaft mounted in a window 10. The drive to the shaft is transmitted through a coupling formed by teeth 46, 35 which engage when the window is closed. In the open position shown a spring forces another set of teeth 34, 38 into engagement thus locking the shaft against rotation. This locking is released when the window is closed, the element having the teeth 34, 35 sliding axially on the splines 30. In another embodiment the coupling is formed by toothed frusto-conical elements Figs. 3 and 4 (not shown).
Patent GB-207840-A (GB)
Title: Improvements in and relating to the manufacture of dyestuff intermediates
IPC: C07C66/02
Filed: 1922-07-08
Abstract: 1-Chlor-2-methylanthraquinone is obtained by chlorinating 2-methylanthraquinone in sulphuric acid or weak oleum. 1-Chloranthraquinone-2-carboxylic acid is prepared by directly oxidizing the sulphuric acid solution of 1-chlor-2-methylanthraquinone prepared as described above without isolation of the intermediate product.  Manganese dioxide is a suitable oxidizing agent.  The process may be carried out by condensing p-toluoylbenzoic acid to 2-methylanthraquinone in weak oleum, chlorinating the resulting solution in the presence of a little iodine, and then adding more sulphuric acid, water, and manganese dioxide.  The chlorination may also be effected in towers packed with iron borings, earthenware, &c.
Patent GB-293390-A (GB)
Title: Improvements relating to variable speed systems
IPC: H02P29/00
Filed: 1928-06-28
Abstract: 293,390. Halloy, A. d'. July 5, 1927, [Convention date]. Controlling speed automatically.-The speed of a shaft 3 is maintained according to a definite law according to a clockwork driven cam 16, by combining the effect of the cam with a governor 18 to operatea rheostat 13 associated with two dynamo-electric machines 9, 10. These machines are keyed to the planet shafts of a differential gear 4, the sun wheel of which is driven by a motor 2.
Patent GB-1399344-A (GB)
Title: Method of producing vesiculated particles of inorganic materials
IPC: A01N25/26
Filed: 1971-06-03
Abstract: 1399344 Vesicular microspheres of inorganic materials IMPERIAL CHEMICAL INDUSTRIES Ltd 19 May 1972 [3 June 1971] 18837/71 Heading C1A [Also in Division B1] Vesicular microspheres of inorganic materials containing vesicules having a diameter of less than 20Á and which occupy 5-95% of the total sphere volume and which have a particle size of 1-100Á, are prepared by forming a first emulsion consisting of (as the continuous phase) a soln. of an inorganic precursor in a solvent, and (as the disperse phase) a liquid immiscible with the soln.; forming a second emulsion consisting of (as the disperse phase) the first emulsion and (as the continuous phase) a liquid immiscible with the disperse phase; converting the second emulsion into a particulate suspension of the inorganic material and finally separating the particles from the liquid continuous phase. The inorganic precursor may be a silicate of an alkali metal, quaternary ammonium, or a metal, e.g. Al, Fe, Cr or Mn, or an organic silicate, e.g. quanidine silicate or ethyl silicate, or aluminium chloro-phosphate ethanolate. The second emulsion may be converted into the particulate suspension by: (a) heating the emulsion to a temp. between the b.pt. of the solvent and the non-miscible liquid, thereby liberating the solvent (having the higher b.pt.) and then heating to a higher temp. to convert the precursor into the inorganic material; (b) cooling the emulsion to a temp. between the b.pt. of the solvent and the non- miscible liquid, thereby freezing out the ptles. with the solvent (having a higher f.pt.) and then heating the ptles.; or (c) reacting the inorganic precursor with another chemical compound which may be present either in the continuous phase or the first emulsion or prevent in the second emulsion. The liquids used may be aliphatic or aromatic hydrocarbons, esters, ketones, ethers, alcohols or water. The non- miscible liquid in the first emulsion may be a polymerizable monomer containing dispersed or dissolved particles of pigment, fungicide, insecticide blowing agent or polymeric material. An emulsifying agent may be used.
Patent GB-335209-A (GB)
Title: Improvements in and relating to machines for pressing disc sound records
IPC: B29C43/36
Filed: 1929-06-19
Abstract: 335,209. Columbia Graphophone Co., Ltd., and Somner, W. June 19, 1929. Moulding gramophone records; pressing-discs. -A matrix M for pressing disc sound records is secured in the die-holder D by a rotating clamping ring C having recesses C<3> provided with inclined faces C<6> so that spring fingers S may apply a clamping pressure. The ring may be rotated by a pinion and a detachable key. The ring may be flanged so that the fingers S do not project above the ring face. A buffer ring B, Fig. 5, may be located between the matrix M and the clamping ring C. In a modification the fingers are formed on the clamping ring, the recesses being formed in the die holder. The ring may be rotated by a lever with pins engaging holes in the ring. In a further modification the clamping ring is secured by chamfered eccentric cams. Specification 223,943 is referred to.
Patent GB-181997-A (GB)
Title: Improvements in and relating to means for supporting and driving an auxiliary overhead aeroplane propeller
IPC: B64C23/00
Filed: 1921-07-12
Abstract: 181,997. Hrib, G. July 12, 1921. Propelling; regulating altitude.-An auxiliary propeller 27, which is declutchable from the engine, is carried by a shaft 20 mounted in an upright 21, formed of two halfsections with packing between their faces, and provided with recesses and thrust bearings 24 to engage with collars 23 on the shaft. The engine 10 has a gear case 14, the extension 13 of which braces the upright 21. The engine drives the auxiliary propeller 27 through a clutch 15 and worm gear 18, 19. To prevent rotation of the propeller 27, a rod 28, having a yoke 30, may be slid vertically into engagement with the propeller by a rack-andpinion mechanism operated by a handle 34, and may be held in position by a stop member engaging a tooth of the pinion. The upright may be in the form of an inverted-L projecting forwardly so that the auxiliary propeller rotates on a horizontal shaft, which is provided with thrust bearings as above and is driven from the vertical shaft by bevel-gearing.
Patent GB-120142-A (GB)
Title: Improvements in and relating to Inserting Screws into Leather or the like.
IPC: A43D86/00
Filed: 1917-12-20
Abstract: 120,142. Standard Rotary Machine Co., Picken, A. M., and Reynolds, F. Dec. 20, 1917. Screwing. - In a screwing - machine, particularly for use in the manufacture of boots and shoes, backward movement of the wire into the usual removable split nozzle B is prevented by a pair of spring-pressed dogs F mounted on pins p carried by a block D, which is secured by screws d<1> to the upper face of the shank C of the nozzle B. The springs s of the dogs bear against the sides of the spindle A, and are tensioned by merely inserting the block D and shank C into the lower end of the spindle.
Patent GB-157692-A (GB)
Title: Improvements in force-pumps
IPC: F04B7/04
Filed: 1920-07-06
Abstract: 157,692. Tutt, M. W., and Hulburd Engineering Co., Ltd. July 6, 1920. Valveless pumps. - Relates to valveless pumps and consists in employing two pistons in one cylinder, the inner piston reciprocating continuously and the outer piston being held d stationary during the suction and delivery strokes of the inner piston, and being moved with, and by, the inner piston, or its rod, to transfer the charge from the inlet to the delivery port and to return the two pistons ready for another suction stroke. Fig. 1 shows a pump with the pistons at the commencement of a suction stroke. As the piston b descends, the piston a is held by a cam k acting on the roller j until the piston b has completed its suction stroke. The cam then disengages the roller and the boss d of the crosshead h bears on the piston a, so that both pistons descend to bring the charge, which has entered through the inlet e, opposite the delivery port f. The cam l now engages with the roller and holds the piston a, while the piston b rises to deliver the charge through the port f. As the cam disengages the roller, the piston b comes in contact with the other and the two rise together into the positions shown. Fig. 6 shows a modification in which there are two pairs of parallel cylinders, each containing one continuously-moving piston b and two intermittently-moving pistons a all actuated and controlled by a single cross-head h and one cam-plate m. As shown, the arrangement constitutes eight single-acting pumps, but by coupling up the suction ports e, and the delivery ports f of each cylinder, the equivalent of four double-acting pumps is got.
Patent GB-273511-A (GB)
Title: Improvements in or relating to wicket-keepers gloves used when playing the game of cricket
IPC: A63B71/14
Filed: 1926-07-30
Abstract: 273,511. Sykes, Ltd., W., and Sykes, W. O. July 30, 1926. Gloves for wicket-keeping.-In wicket-keepers' gloves the fingers and thumb are made with protectors consisting of three parts 5, 6, and 7, Figs. 1, 3 6, 12, and 13. The part 5 is in the form of an open-ended casing of leather formed from a strip which is laced at 12 and blocked to conceal shape. The casing is specially wrapped with adhesive tape and closed at its narrow end by means of a hard tip 6 which may be " last filling " or a composition of Cobblers wax with an addition of resin or hard wax. One or more of the edges of the casing, say the edge 10, is skived to reduce protuberance. After the tip is put in position, the casing and tip are specially wrapped with adhesive tape. A cushioning pad 7 of rubber sponge is inserted in the tip and is maintained in position by a disc 20 or strips of adhesive tape. After the protectors are constructed, blocked, and finished they form finger or thumb sheaths or stalls shaped like thimbles and vary in length and size according to the glove to which they are to be applied, which is done by means of an adhesive solution.
Patent GB-424397-A (GB)
Title: Improvements in electro-magnetically operated mercury switch relays
IPC: H01H50/72
Filed: 1934-06-27
Abstract: 424,397. Electromagnetically-operated mercury switches. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(Adlake Co. ; 319, West Ontario Street, Chicago, U.S.A.) June 27, 1934, No. 18979. [Class 38 (v)] Electromagnetically-operated mercury switch relays have the switch envelope vertically disposed between polepieces which are supported one above the other within a casing having means for supporting a solenoid on the exterior surface of one of its faces in magnetic relation to said polepieces, the envelope containing a displacer adapted to span the gap between the polepieces when the solenoid is energized. As shown in Figs. 2 and 3 the solenoid windings 26 are supported on the exterior wall of the lid 17 of the casing 10, 12 the fixed cores 19 passing through apertures 18 to project into large rectangular polepieces 20 within the casing. Projecting downwardly through aligned holes 32 in the polepieces are the switch envelopes 39 containing mercury 46 and a displacer 47. As the solenoids are energized the flux across the air gap between the upper pole shoe and the magnetic-sleeve 33 within the lower polepiece causes the displacers to rise within the tubes and the level of the mercury therein to fall until the projecting ends 45 of the electrodes 41 are uncovered and their connection to the electrodes 42 broken. Springs 50 prevent the displacers from fracturing the switch envelopes during their movements. The envelopes are filled with inert gas to suppress arcing therein and .are held in position by wax fillings 37, 38.
Patent GB-112447-A (GB)
Title: Improvements in Projection Lamps.
IPC: G03B21/16
Filed: 1917-12-24
Abstract: 112,447. Ritter & Uhlmann. Jan. 2, 1917, [Convention date]. Optical-projection apparatus.-A lamp for optical-projection apparatus has its casing a formed as an ellipsoidal reflector with the source of light b situated at one focus and the condenser a at the other. In a modification, the casing is constructed in two separate parts which are of different diameter but have the same foci. The condenser may consist wholly or partly of a liquid lens forming a heat filter.
Patent GB-315830-A (GB)
Title: Improvements in and relating to radio direction finding
IPC: G01S1/02
Filed: 1929-06-21
Abstract: 315,830. Lorenz Akt.-Ges., C. July 19, 1928, [Convention date]. Directive signalling. - A method of direction finding comprises alternately applying to an indicating instrument after rectification the signals received by either of a pair of fixed directional aerials in conjunction with those from a non-directional aerial. In the apparatus shown, the inductances L2, L3 coupled with frameaerials are also coupled to a coil L1 connected to a non- directional aerial U, and are connected in the grid circuits of two valves arranged in a common envelope R. The plate-circuit inductances L4, L5 are arranged so that of the two coils L6, L7, fixed on a shaft rotated by a motor M, only one is coupled at a time to the corresponding plate-circuit inductance coils L6 and L7 are in series and connected to the input of a rectifying receiver E, the output of which is synchronously diverted to the two valves SP1, SP2 of the coil of a moving coil galvanometer, by means of a rotating switch S driven by the motor M, in such a wav that the currents from L6 reach one half, and from L. the other half of the moving-coil instrument. When the frame-aerials are equally affected by the incoming signals the pointer of the galvanometer remains at zero, at the centre of the scale, but deviations from a course set by the incoming signals produce deflections from the zero position. Telephone receivers T may be put in the circuit as an alternative indication.
Patent GB-1011083-A (GB)
Title: Fastener device
IPC: F16B21/08
Filed: 1963-05-14
Abstract: 1,011,083. Stud and socket fasteners. UNITED-CARR INC. May 14, 1963 [May 31, 1962], No. 19158/63. Heading E2B. A fastener device for securing superposed apertured members 1, 2 comprises a base 6 having a plurality of flexible fins 5 of arcuate cross-section extending from one face, the fins radiating from a central hub, the ends remote from the base being tapered to facilitate insertion into aligned apertures in the members 1, 2, the outer edges of at least some of the fins bearing shoulders 9 such that when the device is assembled with the apertured members, they are secured to one another by the base 6 engaging the adjacent face of one member 2 and portions of the projecting parts of the fins engaging the adjacent face of the member 2. As shown in Fig. 3 the fins are equi-spaced circumferentially. In a modification two opposed curved fins and two opposed straight fins are provided, the straight fins being divided in two by a slot. In further modifications the straight fins have lateral extensions, or alternatively the slot is omitted. The device may be formed of thermoplastic material.
Patent GB-816234-A (GB)
Title: Improvements in or relating to continuous catalytic polymerisation processes and processes for the production of catalysts therefor
Inventor: KEIZER ADRIANUS DE
IPC: B01J19/18
Filed: 1956-06-20
Abstract: <PICT:0816234/III/1> <PICT:0816234/III/2> In a continuous process for making a Ziegler catalyst, the catalyst-forming components are continuously brought together in the required proportions and passed through an ageing zone at a rate sufficient to provide a required residence time therein, under conditions in which no countercurrent flow of the catalyst can occur, and the catalyst is continuously discharged from the ageing zone and fed to a polymerization process. In one method the components are fed to a screw conveyer (Fig. 1) through inlet pipes (one, 19, is shown in Fig. 1) together with solvent, where they are mixed and conveyed by a rotating screw 10 to an outlet 22 at such a rate that the necessary ageing occurs.  In another method the components are fed to a rotating disc contactor (Fig. 4) through inlets 34 and 35, where they are mixed and aged as they pass up a cylindrical container 30 having fixed ring-shaped baffles 33 and disc-shaped baffles 32 rotated by a shaft 31.  The components may also be mixed and aged in a series of small containers on an endless belt or in compartments provided by a chain running on a flat surface.  In examples, catalysts are prepared by mixing and ageing titanium tetrachloride and aluminium diethylmonochloride in a screw conveyer, as in Fig. 1, and in a rotating disc contactor as in Fig. 4.  Specifications 659,241, 799,392, 799,823 and 801,031 are referred to.